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USP Grade Propylene Glycol
TYPICAL PROPERTIES:
| Boiling Point, °C : | 187.3 |
| Freezing Point, °C : | -60 |
| Density, 20/20 °C : | 1.0381 |
| Bulk density, lb/gal, 20 °C : | 8.64 |
| Refractive index, 27 °C : | 1.4293 |
| Surface Tension, dynes/cm, 25 °C : | 40.1 |
| Viscosity, cP, 20 °C : | 0.581 |
| Vapor pressure, mm Hg, 20 °C : | 0.07 |
| Specific heat, cal/g, 20 °C : | 0.590 |
| Heat of combustion, kgcal/mole : | 431.0 |
| Flash Point, °C : | 99 (210 °F) |
| Solubility in water : | Completely soluble |
Vaping Propylene Glycol Specifications:
| Assay (PG on a dry basis), % : | 99.5 Min |
| Acidity (as Acetic Acid), % : | 0.002 Max |
| Color, Pt-Co, APHA : | 10 Max |
| Appearance : | Clear, Viscous Liquid |
| Chlorides, ppm : | 0.5 Max |
| Distillation, IBP (@ 760 mm Hg) : | 186°C Min |
| Distillation, DP (@ 760 mm Hg) : | 189°C Max |
| Heavy Metals (as Pb), ppm : | 5 Max |
| IR Spectrum : | To Pass Test |
| Iron, ppm : | 0.5 Max |
| Odor : | Almost Odorless |
| Suspended Matter : | Substantially Free |
| Water, % : | 0.20 Max |
| Origin : | USA |